1428 ET - Celestica shares are rallying after upbeat earnings from CoreWeave inject a dose of optimism into the AI space. Celestica acts as a key contract manufacturer and design partner for cloud hyperscalers, assembling custom server racks and high-speed Ethernet switches used in high-performance AI data centers. Surging capital spending among major tech firms continues to fuel rapid topline growth across the sector, prompting Celestica to upgrade its full-year expectations in late-October on mounting demand. Still, the rapid growth has also piqued investor concerns over financing costs and timelines for monetization. Following CoreWeave's revenue growth and customer prepayment backlog, hardware suppliers received a bump. Shares of Celestica are trading up 9.2% at C$347.93.